Oh I could list a couple of hundred between schlocky 50's sci fi, Roger Corman, William Castle, and general cornball Ernest P Worrel type stuff, but
I'll stick to one selection and keep it site-topical. If you haven't seen this one, it's hilarious:
Why am I seeing classics like Airplane on this list? They aren't stupid movies even if the comedy in them is screwball.
When I think stupid movies I love, I am thinking movies almost everyone else is going to think are bad or no better than B, but I can't help but love
them anyhow for some reason.
Ice Pirates, it gave us all space herpes!
The 'Burbs, the Tom Hanks movie no one talks about ...
Critters, bowling balls with teeth
Armageddon, space dementia while Bruce Willis drills it all!